Tension Set Apparatus

Tension set is defined as the proportion of applied strain remaining after atest piece has been stretched and allowed to retract in a specifiedmanner.It is determined by stretching a test piece of standard dimensionsto a suitable length in the apparatus for a specified time and temperatureand then allowed to recover. The tension set is calculated as percentageof initial strain.The machine is as per I.S.3400 (PART 13)1972.